<div class="weui-cells weui-cells_form">
  <div class="weui-cell">
    <div class="weui-cell__hd"><label class="weui-label">qq</label></div>
    <div class="weui-cell__bd">
      <input class="weui-input" type="number" pattern="[0-9]*" placeholder="请输入qq号">
    </div>
  </div>
</div>
<a href="javascript:;" class="weui_btn weui_btn_primary">按钮</a>